.280 Ackley Improved Ammo

Welcome to the .280 Ackley Improved Ammunition category, where you’ll find a selection of ammunition tailored for the powerful and versatile .280 Ackley Improved cartridge. Designed to push the boundaries of performance, this category offers ammunition that delivers exceptional accuracy, extended range, and increased velocity.


In 1957, Remington made a significant introduction to the firearms world with the creation of the .280 Remington cartridge. This cartridge was developed by necking down the .30-06 Springfield case to 7mm, aiming to compete with the popular .30-06 and .270 Winchester cartridges.

The .280 Remington offers a well-balanced combination of attributes, harnessing the advantages of both its parent cartridges. With its high ballistic coefficient and sectional density, typical of 7mm calibers, the .280 Remington delivers impressive performance. However, despite its merits, it did not attain the same level of popularity as its counterparts, the .30-06 and .270 Win.

The renowned wildcatter P.O Ackley recognized the potential of the .280 Remington case and set out to enhance its capabilities. He developed the .280 Ackley Improved 40 degrees, adding it to his esteemed line of “Ackley Improved” cartridges. The .280 Ackley Improved gained further recognition when Nosler standardized it in 2008, subsequently earning acceptance by SAAMI. Since then, this improved version has gained significant popularity within the US market.

Today, several reputable firearm manufacturers produce rifles chambered in .280 AI to cater to the growing demand. These include the Ruger M77 Hawkeye, Savage 110, Browning X-Bolt, and Weatherby Mark V, among others. These rifles offer shooters the opportunity to experience the enhanced performance and versatility of the .280 Ackley Improved cartridge, cementing its place as a trusted choice for discerning shooters.

The .280 Ackley Improved (AI) cartridge offers a redesigned version of the .280 Remington, featuring a steeper case shoulder. This modification increases the powder capacity, resulting in a boost of approximately 100 fps in muzzle velocity, placing it in line with the performance of the 7mm Remington Magnum.

While the .280 Remington and .280 Ackley Improved share many similarities, the differences between them are minimal. When firing a .280 Remington cartridge from a rifle chambered in .280 Ackley Improved, the brass case will naturally take the form of the improved version. This allows for the brass to be utilized for reloading purposes, offering convenience and flexibility for shooters who choose to reload their own ammunition.

As a leading retailer of ammunition, KIR Ammo proudly offers a comprehensive selection of .280 Ackley Improved Ammunition to cater to your shooting requirements. Browse our category to find the perfect rounds to unlock the full potential of your .280 Ackley Improved rifle and elevate your shooting experience.

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